Chapter 1179: Image Investigation Case

Boss Qin, whose real name is Qin Yiming, is 42 years old and is the person in charge of the Minghao Repair Shop. Since his wife has divorced him and the child was awarded to the mother, he lives alone in the shop, managing the daily opening of the repair shop.

Tonight, Old Man Qin had intended to wash his hands and start scrolling through videos. Just as he lay down on the bed, he heard violent knocking on the door.

"Police!"

Opening the door, there were fierce-faced police officers in uniform showing their credentials.

Boss Qin hadn't even seen clearly when a group of police officers squeezed in. Someone asked while walking inside: "How many people live here? Is there anyone else?"

"No, just me," Boss Qin answered hurriedly.

"It's fine. We have a case and need to use the area in front of your door for a bit." The instructor from the local police station came over, spoke to Boss Qin in a friendly manner, and then added: "By the way, you have quite a few cars here. Can we rent one for the night? We'll pay."

"Feel free to use whatever you want," Boss Qin answered very readily. The luxury cars in the repair shop were inevitably taken out by the repair shop assistants to go for joyrides and pick up girls; letting the police use them wouldn't chip the paint.

The police station instructor naturally couldn't just use them casually in front of a group of Municipal Bureau police. He patted Boss Qin on the shoulder and said, "You have a good heart. We should still pay what we should pay. In a while, you can issue an invoice, and for the title, just write 'Changyang Municipal Criminal Police Detachment'..."

This was work for the Criminal Police Detachment, so the expenses would naturally be covered by the Criminal Police Detachment. The instructor didn't need Huang Qiangmin to teach him; he had the basic theory.

Outside the repair shop, Jiang Yuan and the others had already started measuring distances based on the positions in the video.

The quality of the surveillance cameras installed by the factory and the repair shop here was very average. They didn't have night vision functions at all, let alone full-color or black-light levels; they didn't even have basic infrared functions, so they couldn't get any vehicle information.

In comparison, the vehicle's light beams were relatively obvious, but to be detailed enough to confirm the headlight arrangement characteristics, there was still a certain requirement for the clarity of the video. Moreover, it was best when the vehicle was moving slowly—specifically to this case, when the vehicle was turning in front of the repair shop.

Several trace examiners used the cracks in the ground, roadside stones, plants, and other features to measure the distance as accurately as possible.

Fortunately, what they obtained was video, so they could always measure a few more times to correct it.

Once everything that could be measured on the ground was measured clearly, police officers drove cars over and began to try on-site analysis.

By this time, it was actually just ordinary trace examination work.

Ordinary trace examination to reconstruct a scene is mostly experimental. A classic example is whether a suitcase can fit a corpse; it's very simple—find someone with a similar build and try it.

Watching surveillance is about the same. The trace examiners first find a few limited positions in the surveillance footage where they can barely determine the vehicle's position. Based on this, they park the test vehicle in that position, turn on the headlights, and then, based on the width and position of the headlights, they can try to judge whether it's the same type, same height, or even the same brand.

After testing a few random cars, the trace examiner in charge quickly had an idea and reported to Jiang Yuan: "It looks like it's a small-to-medium-sized vehicle, basically ruling out large trucks."

"Thank you for your hard work," Jiang Yuan encouraged him.

He understood vehicle trace identification, but he didn't know the specific appearance of the lights of every car. There was no database for this, so they could only test them one by one like this, letting other trace examiners test them one by one.

However, he couldn't run off to rest either. This was somewhat due to the burden of his reputation. If it were more than a year ago, when he was purely a guest forensic doctor or an expert trace examiner, he only needed to do his own job well. But nowadays, for a small case like the theft of dangerous goods, even if an expert group was formed, the leader would definitely be Jiang Yuan. As the person in charge, it wouldn't be good for Jiang Yuan to be too irresponsible.

A group of people stayed up half the night in front of the repair shop.

Cars borrowed one by one lined up to accept tests. As for where the cars were borrowed from, for the police force, this really wasn't a difficult task.

The trace examiners in charge of testing became more and more proficient, and their speed became faster and faster.

Even so, the expressions of several trace examiners remained very serious.

The test had to be done at night. When dawn came, it would be troublesome to look at the headlight traces. If they waited another day and then did the test, it would be delayed for too long.

Wang Chuanxing beside him also thought of the same problem. While yawning, he began to silently check the rental prices of photography studios and the rental requirements for warehouses.

If they covered a photography studio outside the repair shop, it would probably cost a lot of money. Theoretically, finding a pitch-black warehouse to do the test should also be possible. After all, the arrangement of the headlights, the distance, height, etc., all had numbers for reference...

"Team Leader Jiang," the head of the trace examination group finally finished repeated testing before dawn and reached a conclusion: "It should be a Wuling..."

He said, taking out the headlight photos from the surveillance video to compare with the headlight photos taken during the test, and he took out more than a dozen at once.

Out of caution, he had tested many times and many cars before making the judgment.

Jiang Yuan just took a rough look, praised him, and then asked Wang Chuanxing to forward it to the Image Investigation Team, letting them follow the clues to find that type of vehicle at nearby vehicle checkpoints.

There was no need for 100% certainty here. There were many vehicles passing through the national highway and expressway in one hour at night, making it difficult to screen. But referring specifically to a certain brand of vehicle, there weren't many. Finding them all and then seeing if they were related to the stolen-from company would basically identify the suspect.

Of course, if they checked once and still couldn't find the suspect, they would have to re-examine the entire process.

After putting up a cordon outside the repair shop and having the local police station officers give Boss Qin of the repair shop a few instructions, Jiang Yuan and the others got in the car and returned.

Before they even arrived, the Image Investigation Team called:

"We found a Wuling that meets the standard at a checkpoint 4 kilometers away from the factory where the incident occurred. Upon investigation, the owner is named Wang Jiansheng, and he is on the list of former employees!"

Jiang Yuan sat up and, without thinking much, said: "Arrest him. Call Branch Chief Yu."

"Yes." The Image Investigation Team on the other side was even more excited. This case was a purely image investigation case, almost completed by the power of image investigation alone, and could be used for the annual report.

Jiang Yuan put down his phone, gave instructions to the people beside him, and fell asleep.

Soon, in the Coaster on the return trip, snoring rose and fell.

Wang Chuanxing opened his dark-circled eyes and silently sipped his iced Americano. ===== CHAPTER 1180 =====